349816618943 has 32 divisors (see below), whose sum is σ = 409411584000. Its totient is φ = 295538997600.

The previous prime is 349816618939. The next prime is 349816618961.

349816618943 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 349816618943 - 2² = 349816618939 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349816618933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2893730 + ... + 3012192.

It is an arithmetic number, because the mean of its divisors is an integer number (12794112000).

Almost surely, 2^349816618943 is an apocalyptic number.

349816618943 is a deficient number, since it is larger than the sum of its proper divisors (59594965057).

349816618943 is a wasteful number, since it uses less digits than its factorization.

349816618943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118763.

The product of its digits is 26873856, while the sum is 62.

The spelling of 349816618943 in words is "three hundred forty-nine billion, eight hundred sixteen million, six hundred eighteen thousand, nine hundred forty-three".